where do you see performance chips... from past conversations I understand them to be useless... let me see if I can find some links for you.. also I am sure someone will chime on on this...
Salsa (2-tone) Base Automatic Vibe with Moontune package
here's one of many threads discussing this issue: http://forums.genvibe.com/zerothread?id=4146 read through it and you'll see a lot of input on which ones and why. also, there are full CAI and short rams. Run a search and you'll get a lot of info.